How to better control the greenhouse temperature?

In the cultivation of vegetables in protected area, the temperature is one of the biggest factors, how to deal with the temperature of the PengShi, for growth, flowering, fruit, vegetables is very important to high quality and high yield. All in all, 15 Suitable growth temperature 32 ℃ is that most vegetables, and more than 35 ℃ high temperature and under the low temperature of 12 ℃ for protect the vegetables is adversity, as a result, at 15 - temperature stability 32 ℃ between vegetable is the premise of normal growth and high yield. In summer, more than 35 ℃, generally adopt the method of shading, such as sun-shade net, shade cloth, sunscreen, ink and so on. By blocking the light, particularly conducive to shed of red ascending temperature far red block, can reduce the thermal radiation, lower wall, such as the soil thermal storage, thus reduce relative temperature. Winter grass mat on the shop or the soil around the greenhouses, do a good job, sealed to prevent air circulation can control temperature of the lost. In the barn temperature ascending, heating, electric heating boiler, combustion temperature, and many other measures can be taken. How to better control the greenhouse temperature? Can central suspension is a thermometer in the greenhouse, according to the real-time measuring value for heating or cooling work. Note: the temperature object is the hanging position of beautiful PengShi central distance vents, door, wall, far distance vegetables growing point 10 centimeters. In order to more accurately reflect the vegetables grow the temperature of the position. In addition, should be in the tent to hang the thermometer, temperature is measured, take the average value, so as to reduce the error, ensure management measures were wrong.